sound/i2c/other/ak4xxx-adda.c - kernel/msm-4.9 - Gitiles

 /*
  *   ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
  *   AD and DA converters
  *
  *	Copyright (c) 2000-2004 Jaroslav Kysela <perex@suse.cz>,
  *				Takashi Iwai <tiwai@suse.de>
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
  *   (at your option) any later version.
  *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
  *   You should have received a copy of the GNU General Public License
  *   along with this program; if not, write to the Free Software
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
  */

 #include <sound/driver.h>
 #include <asm/io.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/tlv.h>
 #include <sound/ak4xxx-adda.h>

 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Takashi Iwai <tiwai@suse.de>");
 MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx  AD/DA converters");
 MODULE_LICENSE("GPL");

 /* write the given register and save the data to the cache */
 void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg,
 		       unsigned char val)
 {
 	ak->ops.lock(ak, chip);
 	ak->ops.write(ak, chip, reg, val);

 	/* save the data */
 	snd_akm4xxx_set(ak, chip, reg, val);
 	ak->ops.unlock(ak, chip);
 }

 EXPORT_SYMBOL(snd_akm4xxx_write);

 /* reset procedure for AK4524 and AK4528 */
 static void ak4524_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned int chip;
 	unsigned char reg, maxreg;

 	if (ak->type == SND_AK4528)
 		maxreg = 0x06;
 	else
 		maxreg = 0x08;
 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
 		snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
 		if (state)
 			continue;
 		/* DAC volumes */
 		for (reg = 0x04; reg < maxreg; reg++)
 			snd_akm4xxx_write(ak, chip, reg,
 					  snd_akm4xxx_get(ak, chip, reg));
 	}
 }

 /* reset procedure for AK4355 and AK4358 */
 static void ak4355_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned char reg;

 	if (state) {
 		snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
 		return;
 	}
 	for (reg = 0x00; reg < 0x0b; reg++)
 		if (reg != 0x01)
 			snd_akm4xxx_write(ak, 0, reg,
 					  snd_akm4xxx_get(ak, 0, reg));
 	snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */
 }

 /* reset procedure for AK4381 */
 static void ak4381_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned int chip;
 	unsigned char reg;

 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
 		snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
 		if (state)
 			continue;
 		for (reg = 0x01; reg < 0x05; reg++)
 			snd_akm4xxx_write(ak, chip, reg,
 					  snd_akm4xxx_get(ak, chip, reg));
 	}
 }

 /*
  * reset the AKM codecs
  * @state: 1 = reset codec, 0 = restore the registers
  *
  * assert the reset operation and restores the register values to the chips.
  */
 void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state)
 {
 	switch (ak->type) {
 	case SND_AK4524:
 	case SND_AK4528:
 		ak4524_reset(ak, state);
 		break;
 	case SND_AK4529:
 		/* FIXME: needed for ak4529? */
 		break;
 	case SND_AK4355:
 	case SND_AK4358:
 		ak4355_reset(ak, state);
 		break;
 	case SND_AK4381:
 		ak4381_reset(ak, state);
 		break;
 	default:
 		break;
 	}
 }

 EXPORT_SYMBOL(snd_akm4xxx_reset);


 /*
  * Volume conversion table for non-linear volumes
  * from -63.5dB (mute) to 0dB step 0.5dB
  *
  * Used for AK4524 input/ouput attenuation, AK4528, and
  * AK5365 input attenuation
  */
 static unsigned char vol_cvt_datt[128] = {
 	0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04,
 	0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06,
 	0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x0a,
 	0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f,
 	0x10, 0x10, 0x11, 0x12, 0x12, 0x13, 0x13, 0x14,
 	0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1c,
 	0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x23,
 	0x24, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2b, 0x2d,
 	0x2e, 0x30, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
 	0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3e, 0x3f, 0x40,
 	0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x48, 0x4a,
 	0x4b, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54,
 	0x55, 0x56, 0x58, 0x59, 0x5b, 0x5c, 0x5e, 0x5f,
 	0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x69,
 	0x6a, 0x6c, 0x6d, 0x6f, 0x70, 0x71, 0x72, 0x73,
 	0x75, 0x76, 0x77, 0x79, 0x7a, 0x7c, 0x7d, 0x7f,
 };

 /*
  * dB tables
  */
 static DECLARE_TLV_DB_SCALE(db_scale_vol_datt, -6350, 50, 1);
 static DECLARE_TLV_DB_SCALE(db_scale_8bit, -12750, 50, 1);
 static DECLARE_TLV_DB_SCALE(db_scale_7bit, -6350, 50, 1);
 static DECLARE_TLV_DB_LINEAR(db_scale_linear, TLV_DB_GAIN_MUTE, 0);

 /*
  * initialize all the ak4xxx chips
  */
 void snd_akm4xxx_init(struct snd_akm4xxx *ak)
 {
 	static unsigned char inits_ak4524[] = {
 		0x00, 0x07, /* 0: all power up */
 		0x01, 0x00, /* 1: ADC/DAC reset */
 		0x02, 0x60, /* 2: 24bit I2S */
 		0x03, 0x19, /* 3: deemphasis off */
 		0x01, 0x03, /* 1: ADC/DAC enable */
 		0x04, 0x00, /* 4: ADC left muted */
 		0x05, 0x00, /* 5: ADC right muted */
 		0x06, 0x00, /* 6: DAC left muted */
 		0x07, 0x00, /* 7: DAC right muted */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4528[] = {
 		0x00, 0x07, /* 0: all power up */
 		0x01, 0x00, /* 1: ADC/DAC reset */
 		0x02, 0x60, /* 2: 24bit I2S */
 		0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
 		0x01, 0x03, /* 1: ADC/DAC enable */
 		0x04, 0x00, /* 4: ADC left muted */
 		0x05, 0x00, /* 5: ADC right muted */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4529[] = {
 		0x09, 0x01, /* 9: ATS=0, RSTN=1 */
 		0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
 		0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
 		0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
 		0x02, 0xff, /* 2: LOUT1 muted */
 		0x03, 0xff, /* 3: ROUT1 muted */
 		0x04, 0xff, /* 4: LOUT2 muted */
 		0x05, 0xff, /* 5: ROUT2 muted */
 		0x06, 0xff, /* 6: LOUT3 muted */
 		0x07, 0xff, /* 7: ROUT3 muted */
 		0x0b, 0xff, /* B: LOUT4 muted */
 		0x0c, 0xff, /* C: ROUT4 muted */
 		0x08, 0x55, /* 8: deemphasis all off */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4355[] = {
 		0x01, 0x02, /* 1: reset and soft-mute */
 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
 			     * disable DZF, sharp roll-off, RSTN#=0 */
 		0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
 		// 0x02, 0x2e, /* quad speed */
 		0x03, 0x01, /* 3: de-emphasis off */
 		0x04, 0x00, /* 4: LOUT1 volume muted */
 		0x05, 0x00, /* 5: ROUT1 volume muted */
 		0x06, 0x00, /* 6: LOUT2 volume muted */
 		0x07, 0x00, /* 7: ROUT2 volume muted */
 		0x08, 0x00, /* 8: LOUT3 volume muted */
 		0x09, 0x00, /* 9: ROUT3 volume muted */
 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
 		0x01, 0x01, /* 1: un-reset, unmute */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4358[] = {
 		0x01, 0x02, /* 1: reset and soft-mute */
 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
 			     * disable DZF, sharp roll-off, RSTN#=0 */
 		0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
 		// 0x02, 0x2e, /* quad speed */
 		0x03, 0x01, /* 3: de-emphasis off */
 		0x04, 0x00, /* 4: LOUT1 volume muted */
 		0x05, 0x00, /* 5: ROUT1 volume muted */
 		0x06, 0x00, /* 6: LOUT2 volume muted */
 		0x07, 0x00, /* 7: ROUT2 volume muted */
 		0x08, 0x00, /* 8: LOUT3 volume muted */
 		0x09, 0x00, /* 9: ROUT3 volume muted */
 		0x0b, 0x00, /* b: LOUT4 volume muted */
 		0x0c, 0x00, /* c: ROUT4 volume muted */
 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
 		0x01, 0x01, /* 1: un-reset, unmute */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4381[] = {
 		0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
 		0x01, 0x02, /* 1: de-emphasis off, normal speed,
 			     * sharp roll-off, DZF off */
 		// 0x01, 0x12, /* quad speed */
 		0x02, 0x00, /* 2: DZF disabled */
 		0x03, 0x00, /* 3: LATT 0 */
 		0x04, 0x00, /* 4: RATT 0 */
 		0x00, 0x0f, /* 0: power-up, un-reset */
 		0xff, 0xff
 	};

 	int chip, num_chips;
 	unsigned char *ptr, reg, data, *inits;

 	memset(ak->images, 0, sizeof(ak->images));
 	memset(ak->volumes, 0, sizeof(ak->volumes));

 	switch (ak->type) {
 	case SND_AK4524:
 		inits = inits_ak4524;
 		num_chips = ak->num_dacs / 2;
 		break;
 	case SND_AK4528:
 		inits = inits_ak4528;
 		num_chips = ak->num_dacs / 2;
 		break;
 	case SND_AK4529:
 		inits = inits_ak4529;
 		num_chips = 1;
 		break;
 	case SND_AK4355:
 		inits = inits_ak4355;
 		num_chips = 1;
 		break;
 	case SND_AK4358:
 		inits = inits_ak4358;
 		num_chips = 1;
 		break;
 	case SND_AK4381:
 		inits = inits_ak4381;
 		num_chips = ak->num_dacs / 2;
 		break;
 	case SND_AK5365:
 		/* FIXME: any init sequence? */
 		return;
 	default:
 		snd_BUG();
 		return;
 	}

 	for (chip = 0; chip < num_chips; chip++) {
 		ptr = inits;
 		while (*ptr != 0xff) {
 			reg = *ptr++;
 			data = *ptr++;
 			snd_akm4xxx_write(ak, chip, reg, data);
 		}
 	}
 }

 EXPORT_SYMBOL(snd_akm4xxx_init);

 /*
  * Mixer callbacks
  */
 #define AK_IPGA 			(1<<20)	/* including IPGA */
 #define AK_VOL_CVT 			(1<<21)	/* need dB conversion */
 #define AK_NEEDSMSB 			(1<<22)	/* need MSB update bit */
 #define AK_INVERT 			(1<<23)	/* data is inverted */
 #define AK_GET_CHIP(val)		(((val) >> 8) & 0xff)
 #define AK_GET_ADDR(val)		((val) & 0xff)
 #define AK_GET_SHIFT(val)		(((val) >> 16) & 0x0f)
 #define AK_GET_VOL_CVT(val)		(((val) >> 21) & 1)
 #define AK_GET_IPGA(val)		(((val) >> 20) & 1)
 #define AK_GET_NEEDSMSB(val)		(((val) >> 22) & 1)
 #define AK_GET_INVERT(val)		(((val) >> 23) & 1)
 #define AK_GET_MASK(val)		(((val) >> 24) & 0xff)
 #define AK_COMPOSE(chip,addr,shift,mask) \
 	(((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24))

 static int snd_akm4xxx_volume_info(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_info *uinfo)
 {
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = mask;
 	return 0;
 }

 static int snd_akm4xxx_volume_get(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);

 	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
 	return 0;
 }

 static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr,
 		      unsigned char nval)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
 	int chip = AK_GET_CHIP(kcontrol->private_value);

 	if (snd_akm4xxx_get_vol(ak, chip, addr) == nval)
 		return 0;

 	snd_akm4xxx_set_vol(ak, chip, addr, nval);
 	if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128)
 		nval = vol_cvt_datt[nval];
 	if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128)
 		nval++; /* need to correct + 1 since both 127 and 128 are 0dB */
 	if (AK_GET_INVERT(kcontrol->private_value))
 		nval = mask - nval;
 	if (AK_GET_NEEDSMSB(kcontrol->private_value))
 		nval |= 0x80;
 	snd_akm4xxx_write(ak, chip, addr, nval);
 	return 1;
 }

 static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_value *ucontrol)
 {
 	return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value),
 			  ucontrol->value.integer.value[0]);
 }

 static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol,
 					  struct snd_ctl_elem_info *uinfo)
 {
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 2;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = mask;
 	return 0;
 }

 static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol,
 					 struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);

 	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
 	ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1);
 	return 0;
 }

 static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol,
 					 struct snd_ctl_elem_value *ucontrol)
 {
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int change;

 	change = put_ak_reg(kcontrol, addr, ucontrol->value.integer.value[0]);
 	change |= put_ak_reg(kcontrol, addr + 1,
 			     ucontrol->value.integer.value[1]);
 	return change;
 }

 static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol,
 				       struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[4] = {
 		"44.1kHz", "Off", "48kHz", "32kHz",
 	};
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
 	uinfo->value.enumerated.items = 4;
 	if (uinfo->value.enumerated.item >= 4)
 		uinfo->value.enumerated.item = 3;
 	strcpy(uinfo->value.enumerated.name,
 	       texts[uinfo->value.enumerated.item]);
 	return 0;
 }

 static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol,
 				      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	ucontrol->value.enumerated.item[0] =
 		(snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
 	return 0;
 }

 static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol,
 				      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
 	int change;

 	nval = (nval << shift) |
 		(snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
 	change = snd_akm4xxx_get(ak, chip, addr) != nval;
 	if (change)
 		snd_akm4xxx_write(ak, chip, addr, nval);
 	return change;
 }

 static int ak4xxx_switch_info(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = 1;
 	return 0;
 }

 static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	int invert = AK_GET_INVERT(kcontrol->private_value);
 	unsigned char val = snd_akm4xxx_get(ak, chip, addr);

 	if (invert)
 		val = ! val;
 	ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0;
 	return 0;
 }

 static int ak4xxx_switch_put(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	int invert = AK_GET_INVERT(kcontrol->private_value);
 	long flag = ucontrol->value.integer.value[0];
 	unsigned char val, oval;
 	int change;

 	if (invert)
 		flag = ! flag;
 	oval = snd_akm4xxx_get(ak, chip, addr);
 	if (flag)
 		val = oval | (1<<shift);
 	else
 		val = oval & ~(1<<shift);
 	change = (oval != val);
 	if (change)
 		snd_akm4xxx_write(ak, chip, addr, val);
 	return change;
 }

 /*
  * build AK4xxx controls
  */

 static int build_dac_controls(struct snd_akm4xxx *ak)
 {
 	int idx, err, mixer_ch, num_stereo;
 	struct snd_kcontrol_new knew;

 	mixer_ch = 0;
 	for (idx = 0; idx < ak->num_dacs; ) {
 		memset(&knew, 0, sizeof(knew));
 		if (! ak->dac_info || ! ak->dac_info[mixer_ch].name) {
 			knew.name = "DAC Volume";
 			knew.index = mixer_ch + ak->idx_offset * 2;
 			num_stereo = 1;
 		} else {
 			knew.name = ak->dac_info[mixer_ch].name;
 			num_stereo = ak->dac_info[mixer_ch].num_channels;
 		}
 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		knew.count = 1;
 		knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 			SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 		if (num_stereo == 2) {
 			knew.info = snd_akm4xxx_stereo_volume_info;
 			knew.get = snd_akm4xxx_stereo_volume_get;
 			knew.put = snd_akm4xxx_stereo_volume_put;
 		} else {
 			knew.info = snd_akm4xxx_volume_info;
 			knew.get = snd_akm4xxx_volume_get;
 			knew.put = snd_akm4xxx_volume_put;
 		}
 		switch (ak->type) {
 		case SND_AK4524:
 			/* register 6 & 7 */
 			knew.private_value =
 				AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127) |
 				AK_VOL_CVT;
 			knew.tlv.p = db_scale_vol_datt;
 			break;
 		case SND_AK4528:
 			/* register 4 & 5 */
 			knew.private_value =
 				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127) |
 				AK_VOL_CVT;
 			knew.tlv.p = db_scale_vol_datt;
 			break;
 		case SND_AK4529: {
 			/* registers 2-7 and b,c */
 			int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb;
 			knew.private_value =
 				AK_COMPOSE(0, val, 0, 255) | AK_INVERT;
 			knew.tlv.p = db_scale_8bit;
 			break;
 		}
 		case SND_AK4355:
 			/* register 4-9, chip #0 only */
 			knew.private_value = AK_COMPOSE(0, idx + 4, 0, 255);
 			knew.tlv.p = db_scale_8bit;
 			break;
 		case SND_AK4358: {
 			/* register 4-9 and 11-12, chip #0 only */
 			int  addr = idx < 6 ? idx + 4 : idx + 5;
 			knew.private_value =
 				AK_COMPOSE(0, addr, 0, 127) | AK_NEEDSMSB;
 			knew.tlv.p = db_scale_7bit;
 			break;
 		}
 		case SND_AK4381:
 			/* register 3 & 4 */
 			knew.private_value =
 				AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255);
 			knew.tlv.p = db_scale_linear;
 			break;
 		default:
 			return -EINVAL;
 		}

 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
 		if (err < 0)
 			return err;

 		idx += num_stereo;
 		mixer_ch++;
 	}
 	return 0;
 }

 static int build_adc_controls(struct snd_akm4xxx *ak)
 {
 	int idx, err, mixer_ch, num_stereo;
 	struct snd_kcontrol_new knew;

 	mixer_ch = 0;
 	for (idx = 0; idx < ak->num_adcs;) {
 		memset(&knew, 0, sizeof(knew));
 		if (! ak->adc_info || ! ak->adc_info[mixer_ch].name) {
 			knew.name = "ADC Volume";
 			knew.index = mixer_ch + ak->idx_offset * 2;
 			num_stereo = 1;
 		} else {
 			knew.name = ak->adc_info[mixer_ch].name;
 			num_stereo = ak->adc_info[mixer_ch].num_channels;
 		}
 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		knew.count = 1;
 		knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 			SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 		if (num_stereo == 2) {
 			knew.info = snd_akm4xxx_stereo_volume_info;
 			knew.get = snd_akm4xxx_stereo_volume_get;
 			knew.put = snd_akm4xxx_stereo_volume_put;
 		} else {
 			knew.info = snd_akm4xxx_volume_info;
 			knew.get = snd_akm4xxx_volume_get;
 			knew.put = snd_akm4xxx_volume_put;
 		}
 		/* register 4 & 5 */
 		if (ak->type == SND_AK5365)
 			knew.private_value =
 				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 151) |
 				AK_VOL_CVT | AK_IPGA;
 		else
 			knew.private_value =
 				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) |
 				AK_VOL_CVT | AK_IPGA;
 		knew.tlv.p = db_scale_vol_datt;
 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
 		if (err < 0)
 			return err;

 		if (ak->type == SND_AK5365 && (idx % 2) == 0) {
 			if (! ak->adc_info ||
 			    ! ak->adc_info[mixer_ch].switch_name)
 				knew.name = "Capture Switch";
 			else
 				knew.name = ak->adc_info[mixer_ch].switch_name;
 			knew.info = ak4xxx_switch_info;
 			knew.get = ak4xxx_switch_get;
 			knew.put = ak4xxx_switch_put;
 			knew.access = 0;
 			/* register 2, bit 0 (SMUTE): 0 = normal operation,
 			   1 = mute */
 			knew.private_value =
 				AK_COMPOSE(idx/2, 2, 0, 0) | AK_INVERT;
 			err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
 			if (err < 0)
 				return err;
 		}

 		idx += num_stereo;
 		mixer_ch++;
 	}
 	return 0;
 }

 static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs)
 {
 	int idx, err;
 	struct snd_kcontrol_new knew;

 	for (idx = 0; idx < num_emphs; idx++) {
 		memset(&knew, 0, sizeof(knew));
 		knew.name = "Deemphasis";
 		knew.index = idx + ak->idx_offset;
 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		knew.count = 1;
 		knew.info = snd_akm4xxx_deemphasis_info;
 		knew.get = snd_akm4xxx_deemphasis_get;
 		knew.put = snd_akm4xxx_deemphasis_put;
 		switch (ak->type) {
 		case SND_AK4524:
 		case SND_AK4528:
 			/* register 3 */
 			knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
 			break;
 		case SND_AK4529: {
 			int shift = idx == 3 ? 6 : (2 - idx) * 2;
 			/* register 8 with shift */
 			knew.private_value = AK_COMPOSE(0, 8, shift, 0);
 			break;
 		}
 		case SND_AK4355:
 		case SND_AK4358:
 			knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
 			break;
 		case SND_AK4381:
 			knew.private_value = AK_COMPOSE(idx, 1, 1, 0);
 			break;
 		default:
 			return -EINVAL;
 		}
 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
 		if (err < 0)
 			return err;
 	}
 	return 0;
 }

 int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
 {
 	int err, num_emphs;

 	err = build_dac_controls(ak);
 	if (err < 0)
 		return err;

 	err = build_adc_controls(ak);
 	if (err < 0)
 		return err;

 	if (ak->type == SND_AK4355 || ak->type == SND_AK4358)
 		num_emphs = 1;
 	else
 		num_emphs = ak->num_dacs / 2;
 	err = build_deemphasis(ak, num_emphs);
 	if (err < 0)
 		return err;

 	return 0;
 }

 EXPORT_SYMBOL(snd_akm4xxx_build_controls);

 static int __init alsa_akm4xxx_module_init(void)
 {
 	return 0;
 }

 static void __exit alsa_akm4xxx_module_exit(void)
 {
 }

 module_init(alsa_akm4xxx_module_init)
 module_exit(alsa_akm4xxx_module_exit)
	/*
	* ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
	* AD and DA converters
	*
	* Copyright (c) 2000-2004 Jaroslav Kysela <perex@suse.cz>,
	* Takashi Iwai <tiwai@suse.de>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*/

	#include <sound/driver.h>
	#include <asm/io.h>
	#include <linux/delay.h>
	#include <linux/interrupt.h>
	#include <linux/init.h>
	#include <sound/core.h>
	#include <sound/control.h>
	#include <sound/tlv.h>
	#include <sound/ak4xxx-adda.h>

	MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Takashi Iwai <tiwai@suse.de>");
	MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx AD/DA converters");
	MODULE_LICENSE("GPL");

	/* write the given register and save the data to the cache */
	void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg,
	unsigned char val)
	{
	ak->ops.lock(ak, chip);
	ak->ops.write(ak, chip, reg, val);

	/* save the data */
	snd_akm4xxx_set(ak, chip, reg, val);
	ak->ops.unlock(ak, chip);
	}

	EXPORT_SYMBOL(snd_akm4xxx_write);

	/* reset procedure for AK4524 and AK4528 */
	static void ak4524_reset(struct snd_akm4xxx *ak, int state)
	{
	unsigned int chip;
	unsigned char reg, maxreg;

	if (ak->type == SND_AK4528)
	maxreg = 0x06;
	else
	maxreg = 0x08;
	for (chip = 0; chip < ak->num_dacs/2; chip++) {
	snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
	if (state)
	continue;
	/* DAC volumes */
	for (reg = 0x04; reg < maxreg; reg++)
	snd_akm4xxx_write(ak, chip, reg,
	snd_akm4xxx_get(ak, chip, reg));
	}
	}

	/* reset procedure for AK4355 and AK4358 */
	static void ak4355_reset(struct snd_akm4xxx *ak, int state)
	{
	unsigned char reg;

	if (state) {
	snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
	return;
	}
	for (reg = 0x00; reg < 0x0b; reg++)
	if (reg != 0x01)
	snd_akm4xxx_write(ak, 0, reg,
	snd_akm4xxx_get(ak, 0, reg));
	snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */
	}

	/* reset procedure for AK4381 */
	static void ak4381_reset(struct snd_akm4xxx *ak, int state)
	{
	unsigned int chip;
	unsigned char reg;

	for (chip = 0; chip < ak->num_dacs/2; chip++) {
	snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
	if (state)
	continue;
	for (reg = 0x01; reg < 0x05; reg++)
	snd_akm4xxx_write(ak, chip, reg,
	snd_akm4xxx_get(ak, chip, reg));
	}
	}

	/*
	* reset the AKM codecs
	* @state: 1 = reset codec, 0 = restore the registers
	*
	* assert the reset operation and restores the register values to the chips.
	*/
	void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state)
	{
	switch (ak->type) {
	case SND_AK4524:
	case SND_AK4528:
	ak4524_reset(ak, state);
	break;
	case SND_AK4529:
	/* FIXME: needed for ak4529? */
	break;
	case SND_AK4355:
	case SND_AK4358:
	ak4355_reset(ak, state);
	break;
	case SND_AK4381:
	ak4381_reset(ak, state);
	break;
	default:
	break;
	}
	}

	EXPORT_SYMBOL(snd_akm4xxx_reset);


	/*
	* Volume conversion table for non-linear volumes
	* from -63.5dB (mute) to 0dB step 0.5dB
	*
	* Used for AK4524 input/ouput attenuation, AK4528, and
	* AK5365 input attenuation
	*/
	static unsigned char vol_cvt_datt[128] = {
	0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04,
	0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06,
	0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x0a,
	0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f,
	0x10, 0x10, 0x11, 0x12, 0x12, 0x13, 0x13, 0x14,
	0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1c,
	0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x23,
	0x24, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2b, 0x2d,
	0x2e, 0x30, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
	0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3e, 0x3f, 0x40,
	0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x48, 0x4a,
	0x4b, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54,
	0x55, 0x56, 0x58, 0x59, 0x5b, 0x5c, 0x5e, 0x5f,
	0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x69,
	0x6a, 0x6c, 0x6d, 0x6f, 0x70, 0x71, 0x72, 0x73,
	0x75, 0x76, 0x77, 0x79, 0x7a, 0x7c, 0x7d, 0x7f,
	};

	/*
	* dB tables
	*/
	static DECLARE_TLV_DB_SCALE(db_scale_vol_datt, -6350, 50, 1);
	static DECLARE_TLV_DB_SCALE(db_scale_8bit, -12750, 50, 1);
	static DECLARE_TLV_DB_SCALE(db_scale_7bit, -6350, 50, 1);
	static DECLARE_TLV_DB_LINEAR(db_scale_linear, TLV_DB_GAIN_MUTE, 0);

	/*
	* initialize all the ak4xxx chips
	*/
	void snd_akm4xxx_init(struct snd_akm4xxx *ak)
	{
	static unsigned char inits_ak4524[] = {
	0x00, 0x07, /* 0: all power up */
	0x01, 0x00, /* 1: ADC/DAC reset */
	0x02, 0x60, /* 2: 24bit I2S */
	0x03, 0x19, /* 3: deemphasis off */
	0x01, 0x03, /* 1: ADC/DAC enable */
	0x04, 0x00, /* 4: ADC left muted */
	0x05, 0x00, /* 5: ADC right muted */
	0x06, 0x00, /* 6: DAC left muted */
	0x07, 0x00, /* 7: DAC right muted */
	0xff, 0xff
	};
	static unsigned char inits_ak4528[] = {
	0x00, 0x07, /* 0: all power up */
	0x01, 0x00, /* 1: ADC/DAC reset */
	0x02, 0x60, /* 2: 24bit I2S */
	0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
	0x01, 0x03, /* 1: ADC/DAC enable */
	0x04, 0x00, /* 4: ADC left muted */
	0x05, 0x00, /* 5: ADC right muted */
	0xff, 0xff
	};
	static unsigned char inits_ak4529[] = {
	0x09, 0x01, /* 9: ATS=0, RSTN=1 */
	0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
	0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
	0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
	0x02, 0xff, /* 2: LOUT1 muted */
	0x03, 0xff, /* 3: ROUT1 muted */
	0x04, 0xff, /* 4: LOUT2 muted */
	0x05, 0xff, /* 5: ROUT2 muted */
	0x06, 0xff, /* 6: LOUT3 muted */
	0x07, 0xff, /* 7: ROUT3 muted */
	0x0b, 0xff, /* B: LOUT4 muted */
	0x0c, 0xff, /* C: ROUT4 muted */
	0x08, 0x55, /* 8: deemphasis all off */
	0xff, 0xff
	};
	static unsigned char inits_ak4355[] = {
	0x01, 0x02, /* 1: reset and soft-mute */
	0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
	* disable DZF, sharp roll-off, RSTN#=0 */
	0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
	// 0x02, 0x2e, /* quad speed */
	0x03, 0x01, /* 3: de-emphasis off */
	0x04, 0x00, /* 4: LOUT1 volume muted */
	0x05, 0x00, /* 5: ROUT1 volume muted */
	0x06, 0x00, /* 6: LOUT2 volume muted */
	0x07, 0x00, /* 7: ROUT2 volume muted */
	0x08, 0x00, /* 8: LOUT3 volume muted */
	0x09, 0x00, /* 9: ROUT3 volume muted */
	0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
	0x01, 0x01, /* 1: un-reset, unmute */
	0xff, 0xff
	};
	static unsigned char inits_ak4358[] = {
	0x01, 0x02, /* 1: reset and soft-mute */
	0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
	* disable DZF, sharp roll-off, RSTN#=0 */
	0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
	// 0x02, 0x2e, /* quad speed */
	0x03, 0x01, /* 3: de-emphasis off */
	0x04, 0x00, /* 4: LOUT1 volume muted */
	0x05, 0x00, /* 5: ROUT1 volume muted */
	0x06, 0x00, /* 6: LOUT2 volume muted */
	0x07, 0x00, /* 7: ROUT2 volume muted */
	0x08, 0x00, /* 8: LOUT3 volume muted */
	0x09, 0x00, /* 9: ROUT3 volume muted */
	0x0b, 0x00, /* b: LOUT4 volume muted */
	0x0c, 0x00, /* c: ROUT4 volume muted */
	0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
	0x01, 0x01, /* 1: un-reset, unmute */
	0xff, 0xff
	};
	static unsigned char inits_ak4381[] = {
	0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
	0x01, 0x02, /* 1: de-emphasis off, normal speed,
	* sharp roll-off, DZF off */
	// 0x01, 0x12, /* quad speed */
	0x02, 0x00, /* 2: DZF disabled */
	0x03, 0x00, /* 3: LATT 0 */
	0x04, 0x00, /* 4: RATT 0 */
	0x00, 0x0f, /* 0: power-up, un-reset */
	0xff, 0xff
	};

	int chip, num_chips;
	unsigned char ptr, reg, data, inits;

	memset(ak->images, 0, sizeof(ak->images));
	memset(ak->volumes, 0, sizeof(ak->volumes));

	switch (ak->type) {
	case SND_AK4524:
	inits = inits_ak4524;
	num_chips = ak->num_dacs / 2;
	break;
	case SND_AK4528:
	inits = inits_ak4528;
	num_chips = ak->num_dacs / 2;
	break;
	case SND_AK4529:
	inits = inits_ak4529;
	num_chips = 1;
	break;
	case SND_AK4355:
	inits = inits_ak4355;
	num_chips = 1;
	break;
	case SND_AK4358:
	inits = inits_ak4358;
	num_chips = 1;
	break;
	case SND_AK4381:
	inits = inits_ak4381;
	num_chips = ak->num_dacs / 2;
	break;
	case SND_AK5365:
	/* FIXME: any init sequence? */
	return;
	default:
	snd_BUG();
	return;
	}

	for (chip = 0; chip < num_chips; chip++) {
	ptr = inits;
	while (*ptr != 0xff) {
	reg = *ptr++;
	data = *ptr++;
	snd_akm4xxx_write(ak, chip, reg, data);
	}
	}
	}

	EXPORT_SYMBOL(snd_akm4xxx_init);

	/*
	* Mixer callbacks
	*/
	#define AK_IPGA (1<<20) /* including IPGA */
	#define AK_VOL_CVT (1<<21) /* need dB conversion */
	#define AK_NEEDSMSB (1<<22) /* need MSB update bit */
	#define AK_INVERT (1<<23) /* data is inverted */
	#define AK_GET_CHIP(val) (((val) >> 8) & 0xff)
	#define AK_GET_ADDR(val) ((val) & 0xff)
	#define AK_GET_SHIFT(val) (((val) >> 16) & 0x0f)
	#define AK_GET_VOL_CVT(val) (((val) >> 21) & 1)
	#define AK_GET_IPGA(val) (((val) >> 20) & 1)
	#define AK_GET_NEEDSMSB(val) (((val) >> 22) & 1)
	#define AK_GET_INVERT(val) (((val) >> 23) & 1)
	#define AK_GET_MASK(val) (((val) >> 24) & 0xff)
	#define AK_COMPOSE(chip,addr,shift,mask) \
	(((chip) << 8) \| (addr) \| ((shift) << 16) \| ((mask) << 24))

	static int snd_akm4xxx_volume_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
	}

	static int snd_akm4xxx_volume_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);

	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
	return 0;
	}

	static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr,
	unsigned char nval)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	int chip = AK_GET_CHIP(kcontrol->private_value);

	if (snd_akm4xxx_get_vol(ak, chip, addr) == nval)
	return 0;

	snd_akm4xxx_set_vol(ak, chip, addr, nval);
	if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128)
	nval = vol_cvt_datt[nval];
	if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128)
	nval++; /* need to correct + 1 since both 127 and 128 are 0dB */
	if (AK_GET_INVERT(kcontrol->private_value))
	nval = mask - nval;
	if (AK_GET_NEEDSMSB(kcontrol->private_value))
	nval \|= 0x80;
	snd_akm4xxx_write(ak, chip, addr, nval);
	return 1;
	}

	static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value),
	ucontrol->value.integer.value[0]);
	}

	static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
	}

	static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);

	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
	ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1);
	return 0;
	}

	static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int change;

	change = put_ak_reg(kcontrol, addr, ucontrol->value.integer.value[0]);
	change \|= put_ak_reg(kcontrol, addr + 1,
	ucontrol->value.integer.value[1]);
	return change;
	}

	static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	static char *texts[4] = {
	"44.1kHz", "Off", "48kHz", "32kHz",
	};
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item >= 4)
	uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name,
	texts[uinfo->value.enumerated.item]);
	return 0;
	}

	static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	ucontrol->value.enumerated.item[0] =
	(snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
	return 0;
	}

	static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
	int change;

	nval = (nval << shift) \|
	(snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
	change = snd_akm4xxx_get(ak, chip, addr) != nval;
	if (change)
	snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
	}

	static int ak4xxx_switch_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
	}

	static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	unsigned char val = snd_akm4xxx_get(ak, chip, addr);

	if (invert)
	val = ! val;
	ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0;
	return 0;
	}

	static int ak4xxx_switch_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	long flag = ucontrol->value.integer.value[0];
	unsigned char val, oval;
	int change;

	if (invert)
	flag = ! flag;
	oval = snd_akm4xxx_get(ak, chip, addr);
	if (flag)
	val = oval \| (1<<shift);
	else
	val = oval & ~(1<<shift);
	change = (oval != val);
	if (change)
	snd_akm4xxx_write(ak, chip, addr, val);
	return change;
	}

	/*
	* build AK4xxx controls
	*/

	static int build_dac_controls(struct snd_akm4xxx *ak)
	{
	int idx, err, mixer_ch, num_stereo;
	struct snd_kcontrol_new knew;

	mixer_ch = 0;
	for (idx = 0; idx < ak->num_dacs; ) {
	memset(&knew, 0, sizeof(knew));
	if (! ak->dac_info \|\| ! ak->dac_info[mixer_ch].name) {
	knew.name = "DAC Volume";
	knew.index = mixer_ch + ak->idx_offset * 2;
	num_stereo = 1;
	} else {
	knew.name = ak->dac_info[mixer_ch].name;
	num_stereo = ak->dac_info[mixer_ch].num_channels;
	}
	knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	knew.count = 1;
	knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE \|
	SNDRV_CTL_ELEM_ACCESS_TLV_READ;
	if (num_stereo == 2) {
	knew.info = snd_akm4xxx_stereo_volume_info;
	knew.get = snd_akm4xxx_stereo_volume_get;
	knew.put = snd_akm4xxx_stereo_volume_put;
	} else {
	knew.info = snd_akm4xxx_volume_info;
	knew.get = snd_akm4xxx_volume_get;
	knew.put = snd_akm4xxx_volume_put;
	}
	switch (ak->type) {
	case SND_AK4524:
	/* register 6 & 7 */
	knew.private_value =
	AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127) \|
	AK_VOL_CVT;
	knew.tlv.p = db_scale_vol_datt;
	break;
	case SND_AK4528:
	/* register 4 & 5 */
	knew.private_value =
	AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127) \|
	AK_VOL_CVT;
	knew.tlv.p = db_scale_vol_datt;
	break;
	case SND_AK4529: {
	/* registers 2-7 and b,c */
	int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb;
	knew.private_value =
	AK_COMPOSE(0, val, 0, 255) \| AK_INVERT;
	knew.tlv.p = db_scale_8bit;
	break;
	}
	case SND_AK4355:
	/* register 4-9, chip #0 only */
	knew.private_value = AK_COMPOSE(0, idx + 4, 0, 255);
	knew.tlv.p = db_scale_8bit;
	break;
	case SND_AK4358: {
	/* register 4-9 and 11-12, chip #0 only */
	int addr = idx < 6 ? idx + 4 : idx + 5;
	knew.private_value =
	AK_COMPOSE(0, addr, 0, 127) \| AK_NEEDSMSB;
	knew.tlv.p = db_scale_7bit;
	break;
	}
	case SND_AK4381:
	/* register 3 & 4 */
	knew.private_value =
	AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255);
	knew.tlv.p = db_scale_linear;
	break;
	default:
	return -EINVAL;
	}

	err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
	if (err < 0)
	return err;

	idx += num_stereo;
	mixer_ch++;
	}
	return 0;
	}

	static int build_adc_controls(struct snd_akm4xxx *ak)
	{
	int idx, err, mixer_ch, num_stereo;
	struct snd_kcontrol_new knew;

	mixer_ch = 0;
	for (idx = 0; idx < ak->num_adcs;) {
	memset(&knew, 0, sizeof(knew));
	if (! ak->adc_info \|\| ! ak->adc_info[mixer_ch].name) {
	knew.name = "ADC Volume";
	knew.index = mixer_ch + ak->idx_offset * 2;
	num_stereo = 1;
	} else {
	knew.name = ak->adc_info[mixer_ch].name;
	num_stereo = ak->adc_info[mixer_ch].num_channels;
	}
	knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	knew.count = 1;
	knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE \|
	SNDRV_CTL_ELEM_ACCESS_TLV_READ;
	if (num_stereo == 2) {
	knew.info = snd_akm4xxx_stereo_volume_info;
	knew.get = snd_akm4xxx_stereo_volume_get;
	knew.put = snd_akm4xxx_stereo_volume_put;
	} else {
	knew.info = snd_akm4xxx_volume_info;
	knew.get = snd_akm4xxx_volume_get;
	knew.put = snd_akm4xxx_volume_put;
	}
	/* register 4 & 5 */
	if (ak->type == SND_AK5365)
	knew.private_value =
	AK_COMPOSE(idx/2, (idx%2) + 4, 0, 151) \|
	AK_VOL_CVT \| AK_IPGA;
	else
	knew.private_value =
	AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) \|
	AK_VOL_CVT \| AK_IPGA;
	knew.tlv.p = db_scale_vol_datt;
	err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
	if (err < 0)
	return err;

	if (ak->type == SND_AK5365 && (idx % 2) == 0) {
	if (! ak->adc_info \|\|
	! ak->adc_info[mixer_ch].switch_name)
	knew.name = "Capture Switch";
	else
	knew.name = ak->adc_info[mixer_ch].switch_name;
	knew.info = ak4xxx_switch_info;
	knew.get = ak4xxx_switch_get;
	knew.put = ak4xxx_switch_put;
	knew.access = 0;
	/* register 2, bit 0 (SMUTE): 0 = normal operation,
	1 = mute */
	knew.private_value =
	AK_COMPOSE(idx/2, 2, 0, 0) \| AK_INVERT;
	err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
	if (err < 0)
	return err;
	}

	idx += num_stereo;
	mixer_ch++;
	}
	return 0;
	}

	static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs)
	{
	int idx, err;
	struct snd_kcontrol_new knew;

	for (idx = 0; idx < num_emphs; idx++) {
	memset(&knew, 0, sizeof(knew));
	knew.name = "Deemphasis";
	knew.index = idx + ak->idx_offset;
	knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	knew.count = 1;
	knew.info = snd_akm4xxx_deemphasis_info;
	knew.get = snd_akm4xxx_deemphasis_get;
	knew.put = snd_akm4xxx_deemphasis_put;
	switch (ak->type) {
	case SND_AK4524:
	case SND_AK4528:
	/* register 3 */
	knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
	break;
	case SND_AK4529: {
	int shift = idx == 3 ? 6 : (2 - idx) * 2;
	/* register 8 with shift */
	knew.private_value = AK_COMPOSE(0, 8, shift, 0);
	break;
	}
	case SND_AK4355:
	case SND_AK4358:
	knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
	break;
	case SND_AK4381:
	knew.private_value = AK_COMPOSE(idx, 1, 1, 0);
	break;
	default:
	return -EINVAL;
	}
	err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
	if (err < 0)
	return err;
	}
	return 0;
	}

	int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
	{
	int err, num_emphs;

	err = build_dac_controls(ak);
	if (err < 0)
	return err;

	err = build_adc_controls(ak);
	if (err < 0)
	return err;

	if (ak->type == SND_AK4355 \|\| ak->type == SND_AK4358)
	num_emphs = 1;
	else
	num_emphs = ak->num_dacs / 2;
	err = build_deemphasis(ak, num_emphs);
	if (err < 0)
	return err;

	return 0;
	}

	EXPORT_SYMBOL(snd_akm4xxx_build_controls);

	static int __init alsa_akm4xxx_module_init(void)
	{
	return 0;
	}

	static void __exit alsa_akm4xxx_module_exit(void)
	{
	}

	module_init(alsa_akm4xxx_module_init)
	module_exit(alsa_akm4xxx_module_exit)